How much do you want to spend? And are you sure you want just a .40? OS LA series are cheapest, hands down, but while good and reliable runners and nicely machined they are down on power. Tower hobbies, thunder tiger, magnum all sell good inexpensive engines, OS, Evolution and Super Tigre are a little more expensive. Set a budget, search your engine choice here on RCU. You'll find good and bad experiences with EVERY make of engine out there, but some do seem to be better than others. I have a super tigre and two OS's, one la 40 and one 46AX. Both the OS engines ran great right out of the box, while the ST took a little fiddling around to get running right. All of them are two or three flip starters, idle well, run great and make enough power for me. Actually, unless you pick some no-name made in China bargin basement clunker, you really can't go wrong.

Then again, you could pay a visit to your local flying field and see what people are flying with. You'll probablly get just as many opinions there as you will here.

Whatever you get, search around RCU for safety tips and read some of the prop strike stories before you try starting and running it. Or better yet ask for some help from your LHS or local flying club.... <off soapbox>


Andy